function 散点图() {

    // 基于准备好的dom，初始化echarts实例
    var scatterChart = echarts.init(document.getElementById('scattermain'));

    // 指定图表的配置项和数据
    option = {
        xAxis: {},
        yAxis: {},
        series: [
            {
                symbolSize: 20,
                data: [
                    [10.0, 8.04],
                    [8.07, 6.95],
                    [13.0, 7.58],
                    [9.05, 8.81],
                    [11.0, 8.33],
                    [14.0, 7.66],
                    [13.4, 6.81],
                    [10.0, 6.33],
                    [14.0, 8.96],
                    [12.5, 6.82],
                    [9.15, 7.2],
                    [11.5, 7.2],
                    [3.03, 4.23],
                    [12.2, 7.83],
                    [2.02, 4.47],
                    [1.05, 3.33],
                    [4.05, 4.96],
                    [6.03, 7.24],
                    [12.0, 6.26],
                    [12.0, 8.84],
                    [7.08, 5.82],
                    [5.02, 5.68]
                ],
                type: 'scatter'
            }
        ]
    };

    // 使用刚指定的配置项和数据显示图表
    scatterChart.setOption(option);
}
